Taiyou Mitai na,

Google translated from chil-chil.net:

Kagura Tocho, once known as a "child genius,"
receives an offer to appear in a TV drama for the first time in a long while.
He's to play Haruta, a junior who secretly has feelings for the student council president, played by rookie idol Karasuma Taki.
Since his days as a child actor, Tocho has "killed himself" to get into his roles, and is willing to kiss and go beyond, in order to get closer to the character.
Taki, who has no romantic experience, is at the mercy of this precariousness and becomes fascinated by it.
To Tocho, Taki, who shines on those around him like a sun, is a nuisance, but he is someone he just can't look away from.