>>280344194
Idk about "mature" but the most cancerous and childish thing a romance anime/manga can do is having the guy spazzing out because he can see the girls neck or ankles. Or the second he misunderstands something, he has to shout and scream and run away like a dumb fucking retard subhuman.

It's not even being shy, it's literally just being retarded. Also, stories about college students or adults being too shy to kiss after 50 chapters.