i only know physical education (the one on the lower left) but i wouldn’t recommend it if you want romance. it’s completely just psychological and manipulation.
one of them was step lovers. It’s about these sex buddy but MC ended and then became step brother and the ML knew about the parents relationship so he allowed his dad to marry MC mom and it goes all down from there.
hiii does anyone know the names of the manhwas listed as suous like learning material? thxxx