Idol-sama wa Shitsuke ga Warui

The guy you had an abortive relationship with has become a popular idol! Daisuke never wanted to see Sena, his junior in high school, again, but he runs into him on the street and is taken away without telling him what to do. Sena Tatsuho, the steadfast centre of the rapidly rising idol group "Bright", holds his own advancement hostage and says: ... 'Dai-chan become my manager!' Daisuke is determined to be an idol geek and an honest member of society, so he's determined to be thorough. Daisuke is full of enthusiasm, He is also turned on by Sena's selfishness and sparkle....?