Discommunication(1991)

Discommunication

Togawa is dating the resident class weirdo, and their relationship is even more non-standard than she expected! They've never even kissed, but he's tasted her tears, cleaned her ears, and shaved the nape of her neck! And also walked her through a Buddhist ritual that opened her third eye and brought her spiritual peace and a good night's sleep. It is indeed a wonder, in more ways than one, that she can't help but feel drawn to him.

(Source: J-Novel Club)