Only Boo! 1x5 Heart Flutter Season 1 Season 1 12 Episodes Moo prepares a special gesture for Kang, but is ultimately punished by the school director. Kang worries that Moo's crush is distracting him from his school work and responsibilities. 1x1 - Change 1x2 - The Kind One 1x3 - Weak Spot for You 1x4 - If You Like Him, Flirt With Him 1x5 - Heart Flutter 1x6 - I See My Destination 1x7 - Love, oh Love 1x8 - My Boo 1x9 - Blank Letter 1x10 - Station No. 0 1x11 - Episode 11 1x12 - Only Boo