Chapter 25

Engel's Coefficient is the 25th Chapter of "Daily Life With A Monster Girl" or "Monster Musume no Iru Nichijou"

Plot
The Chapter starts with Kurusu worried about his household's Engel Coefficient, for it has been in bad shape due to the high cost of food eaten by his home stays, which is only worsened by Miia's horrible resulting cooking experiments. He then bows to the inevitable once he realizes they have no food left in the house and takes everyone (except Miia, Lala, and Rachnee) shopping, only to find the usual supermarket is closed.

Just as Kimihito begins feeling depressed, he notices the market plaza nearby. The girls feel impressed for all the stores and people, but suddenly the shop clerks begin panicking, as they believe that it will be offensive for a mermaid to see dead fish, or a harpy seeing fried poultry. Kurusu assures the people that they are okay with eating fish and poultry, although Centorea is herbivorous.

Kimihito then notices that Mero is staring at a fish market. The mermaid congratulates the clerk for his talent at choosing the best specimens, and her royal demeanor causes the man to feel very honored. The clerk tries to give Mero as a gift a very large Yellow-Tail, but Kurusu stops her from accepting. Meanwhile Papi and Suu are seen playing with some kids. In the end Kimihito convinces the clerk to simply give them the fish leftovers, but Meroune is happy nonetheless.

Kurusu sees that Cerea is being insisted by vegetable shop owner to buy more, although the centaur tries to refuse. The woman then offers her some carrot sticks, and while at first reluctant, once she tastes them, she loves it (because herbivores' sense of taste is 2-4 times more sensitive than a human, on the other hand, carnivores like Miia and Rachnera only can taste about 1/25-1/50th of what a human can taste). The shop owner lady says she's very happy at seeing Cerea eating so much vegetables and tries to sell them some more, but Kurusu tells the woman that he might not be able to afford it, so the woman simply offers to give them the weird-looking vegetables that she couldn't sell. The other shop owners then tells them that they can have other things as a way of thanking Papi and Suu for playing with their children, such as bean curd, bread crusts and odd sized eggs, alongside the fish leftovers and the weird-looking vegetables.

Papi seems really happy for all the things they got, but Kimihito wonders if they will be able to carry it. When Mero asks Cerea to carry it, she insists that she's not a pack horse, but when Kimihito asks her, she easily accepts. Just as the girls leave, Suu asks Kurusu if he's not going home, and he tells the slime that he plans on getting more food just in case. Suu assures that she doesn't need to be fed, as she can digest nearly anything, but Kurusu tells her that he wants everyone to eat at the same table as they're a family. This gives the slime an idea an begins dragging Kimihito with her tentacle.

At the forest, Suu transmits Kii, the dryad (who's once more in her adult form) the situation with her antenna, and Kii confirms that they want to collect edible plants. The dryad then asks them if she, a protector of the forest, will allow them to destroy it, but just as Kimihito looks disappointed, Suu begins grabbing her with her tentacles and also to suck her breasts. When Kurusu, clearly panicking, drags Suu away, the slime says that she thought that by doing that Kii would allow them to take from the forest, and that she seemed to enjoy it when Kimihito did the same, but the dryad shuts her. Kii mentions that while she won't allow them to damage the forest, she will let them take a little, as Papi told her that she most listen to the request of a friend.

Kii leads them to a clearing with many beautiful plants, but Kimihito notices that there is a poisonous mushroom mixed with edible ones. Kii comments that she only took them to a place where the ripeness and firmness of the plants were right for ingestion, but that she doesn't know which ones are poisonous to animals. Kimihito notes that many poisonous and edible plants look very similar and when he is ready to give up, he sees that Suu is capable of discerning which ones are edible and which aren't thanks to her unique metabolism. While thanking Kii for her help, the dryad assures is ok and that Papi should visit her more often. Kurusu then notices that Suu has weird bubbles in her but says she's fine, but is clear that she's not when she calls the other girls "good-for-nothing", the plants poisoned her words.

Suddenly Mrs. Smith greets them and mentions that because she still can't find a host family for Kii, she has come to check her. She gets excited once she sees all the plants and asks him if he's having a dinner party, but he's unable to explain. While Mrs. Smith is talking to the dryad, Suu tells Kurusu that they should "ditch the leech" and head home, but the young man wonders how is he going to get the poison out of the slime.

While walking near a river, Kimihito comments that is a beautiful place, and when he notices the fish in the river, he wonders if they should catch some. Suddenly, Draco the dragonewt jumps on them yelling that Miia is hers, only to be spitted in the face by Suu with poisonous liquid. With the dragon girl unable to move, Suu begins to do her tentacle rape. Draco screams that she won't try to harm Kimihito anymore, but the slime refuses to let her go until she's finished.

Suddenly Polt the kobold greets them and when Kurusu asks her what are they doing there, the kobold mentions that they're fishing catfish. Polt comments that the American catfish is an invasive species and they're doing community service to get rid of the problem (although fishing is also a sport, so she enjoys it). When Draco asks the kobold why she had to come too, she responds that is her punishment for going out on her own. Kurusu asks Polt what is she going to do with the catfish, and she responds that she's going to dig a hole and bury them. When Kimihito aks if they can have them, Polt agrees but asks if they're going to eat the catfish. Although Draco doesn't seem too convinced with the idea, the young man mentions the ways of eating catfish, and Polt gives them tips on how to take the fish home.

Back at the house, Kimihito announces that dinner is served and all the girls look happily at the food. Kurusu is relieved that there are still other ingredients on the fridge, and thanks Suu for her help. Before he can relax, the M.O.N. squad enters the house and say they came for the dinner party and they brought they're own seats. After the dinner is finished and everybody is satisfied, Kimihito looks horrified at the empty fridge (again). When Mrs. Smith asks him if he's okay, while preparing herself a coffee, Suu begins saying (with still some poison inside her) that because of the freeloaders he's out of food. When Kurusu tries to shut up the slime, Mrs. Smith mentions that the government reimburses all living expenses from those who participate in the exchange program, but apparently she forgot to tell him. Kimihito, completely beaten, screams inside Suu all his frustrations, with Smith wondering what's wrong.

The next day they went to a steak restaurant with a half-off sale and ate all three meals (Cerea had a salad), and they were all banned from that restaurant.

Key Events

 * It's revealed the government reimburses all living expenses from those who participate in the exchange program. However, Smith forgot to tell Kimihito this.
 * Polt, Draco and Kii make a reappearance.
 * Polt and Draco preform community service by helping remove invasive animal species from the area.
 * After an unpleasant encounter with Suu, Draco promises not to bother Kimihito again.
 * As Smith is having difficulty finding a proper host family for her, Kii is still living in the forest as its protector.
 * More abilities & traits of Suu are shown.