Idol Tensei - Oshi Shi ni Tamafu Koto Nakare

Sugou Kai is a girl who loves K-Pop idol Jinan with all her heart. Jinan is the meaning of life, her sustenance, and her healing. One day, however, Kai receives unbelievable news. Jinan committed suicide. To save her beloved idol, the super otaku decides to reincarnate as a super handsome idol herself.