@dokidoki Oh yeah you're right, she said she is a student teacher in chapter 22. I was confused because this manga don't have really continuity. @midnight2630 Because she thought Nemoto can't make food for herself so she proposed to start a family so she can make food for Nemoto.
Hmm I am continuing reading because it takes barely any time to read but I hope it expands into longer stories or at least different formulas at some point.