>>544815139
Like people have said to you already: it's because they do a good job of making sensei relatable and making him really feel like you if you cared about showing up for these girls irl. He doesnt do anything amazing in the story. He just shows up and pep talks. He does stuff that you could literally do. In other gacha they turn MCs into Gary Stus whose MC gets sucked off just for existing and it makes you feel like an Asian man is trying to reach for your wallet. BA girls feel more natural and there is a ramp up mainly for affection. It also helps there is no "main girl" or group. If you dislike a student, you wont be having to interact with them too much. The game wants you to like many students. Which it seems to do well with.