Wakana Chan-s First Sex -190201--no Watermark- Site

How does this function practically? Consider a romance anime. The protagonist (often male, often oblivious) meets a mysterious girl. She is not named Wakana immediately. Instead, the story leaves "watermarks" of the name:

This title appears to refer to a specific adult video production involving the performer Wakana. Based on the catalog details: Wakana (likely Wakana Nao) Release Date: February 1, 2019 Wakana chan-s first sex -190201--No Watermark-

: Unlike many series where an extrovert "fixes" an introvert, How does this function practically