Tensei Danshi ~Onna ga Otoko ni Time Leap~

/ Tensei Danshi Onna ga Otoko ni Taimu rippu Born female but identifying as male, Shima drifts through school alone, only finding comfort in venting to caf owner Runa, a transgender woman who understands him in a way no one else everything changes. After a tragic accident, Shima awakens in Runa's body in 1999, back when Runa was still living as a teenage in a male body, Shima must face the intense sexual awakening of a boy going through puberty.