2-Headed Boy

You have been staying in Japan after traveling for a highly advanced medical procedure. Your only friend, Koyomi, sees how isolated you have become here, and is encouraging you to get into dating. She offers to introduce you to the sweet, normal, well-adjusted single guys she knows in your apartment complex. But for whatever reason, she doesn't seem to want you to meet Kage, your next-door neighbor.
"There's something really off about him. If you decide to talk to him, obviously I can't stop you. Just...please be careful. He's really...fragile."
Every choice you make with/towards your yandere neighbor will have a disproportionately larger impact on him than all the other dating "options," for better or worse. Also, be careful about the other "options." Every choice you make with them also affects Kage.
Build your stats and your guys' stats through interactions and cute dates! Figure out what they like and make them cute gifts! Witness Kage become increasingly unhinged and navigate the fallout of his wacky antics!
What you say, do, don't say or don't do all matter. Especially to your yandere!
Why has he latched on to you so tightly? Reach the "true ending" to find out!
Choose your name, gender, and appearance. Choose your birthday for some fun birthday surprises. Choose your boyfriend. But remember Koyomi's advice: be really careful with Kage. He's fragile.
Features:
Character customization (gender, appearance, outfits)

Apartment decorating (customize your furniture, walls, flooring, etc.)

Stat building determined by your interaction choices (your choices determine your own stats and boyfriend stats)

Crafting and painting

Cat adoption

Cooking

Shopping

Exploration

Collecting

Branching dialogue

Multiple endings

Psychological Warfare