To repay her parents' debts, the female teacher Tohka lives a frugal life without even having a boyfriend. However, she is caught by a burglar with her "lewd secret"... When the man breaks in again and threatens to expose her secret, he rapes her. Although her body was dry, it began to throb against her will, and eventually, she finds herself longing for his visits. The forbidden trysts between an educator and a criminal, summoned by a red umbrella... What action does Tohka ultimately take? 【Featured Novel】 Based on the original work "Akai Kasa" by Aoi Rinka. The real teacher "Ogawa Tohka" struggles between reason and lust...
