The Girl I Saved on the Train Turned Out to Be My Childhood Friend, Vol. 1 (light novel)

A FRUSTRATINGLY SWEET, ZERO-STRESS ROMANTIC COMEDY!​As children, Ryou Takamori and Hina Fushimi were thick as thieves—but while Hina grew more beautiful and popular, Ryou faded into the background as a loner, and the two drifted apart. That is, until the morning Ryou saves Hina from a groper on a train and unwittingly reminds her how close they used to be. Now Hina is smitten—if only Ryou weren’t so oblivious!