it is bl cuz shounen = boy and ai =love so bl...
WAIT I THOUGHT SHOUNEN AI WAS ONLY ABT TWO BOY MCS AND NOT BL
no its just the romance no sex
yea they put shounen ai cuz its more innocent....
you can also see at the tags "full color bl"
OH SORRY OLLLL
shounen means boy
ai means love
so it's called shounen ai or boy's love or in shortcut BL
I THOUGHT THIS WAS A BL