Help me find a bl manga

The mc was a shy and chubby as a kid (ifk about his personality), but ml found crying him day and is happy that he showing his "real" self something about he said(this scenario was there childhood)


Highschool: ML finally found mc again in highschool and but he was iritated or maybe mad that he isn't able to see his "true self" so he went to provoke mc by showing him a picture of him as the chubby kid he was before and the mc snapped at that blackmail, i dont know what happened next but i think they were in the bathroom and mc was now crying while ml is happy to see his "true or real self"