Wouldn't mind if the the epilogue chapter was like Nisekoi's i.e. Romio and Juliet's children attending the same school and meeting the children of the other characters.
Seeing on how his parents are siblings as well, why does he and his sister not have deformities, mental imbalances (not including the sister's yandereness), or other fucked up shit growing all over themselves?
Yo Banana, thanx for picking this up. But if u need the raws u can find them in fairly good quality at these two sites.
http://isekairaw.com/manga/eiyuu-kyoushitsu-raw/
https://manga-download.com/%E8%8B%B1%E9%9B%84%E6%95%99%E5%AE%A4-%E7%AC%AC01-03%E5%B7%BB-eiyu-kyoshitsu-vol-01-03/
I had no problems with her weight (tho that neck growth seemed really unorthodox) but with a name like "Friedbutter" I can't help but think this author was making fun of her intentionally.