(Various anime/manga series + slice-of-life storylines + multiple heroines + Oregairu + If I Had a Sister + Eromanga Sensei + Lonely Rock + BanG Dream! worldview, etc...)

(As for the BanG Dream! world view, the main parts I'm writing are Mygo and Ave Mujica, and maybe Hhw too. My current outline only goes up to the school festival part of Oregairu. Without adding the plot of other anime, it's about 60 chapters. If you add them, it'll be at least 100 chapters. So I pray I can live a long time.)

After dying from overwork, he transmigrated to a crossover anime world and gained the identity of an orphan with no parents but money and a house. Why not just start a leisurely life of working half a day every day?

What do you mean by "I must go to school to open a shop"?

Lord Xingge! Please hand over your daughter to me!

The senior student's hidden menu costs extra!

Surely! Isiro Iroha is made up of citrus essence, gummy candy, chili powder, and some other strange substance, right? Look, even her lip balm smells like orange.