This is a commercial side story for "Oshibana!" drawn by the author herself. 
 
It is an unofficial R18 manga that creatively (and erotically) fills in the blank that occurred during episode 20 of the main story between pages 19 and 20 (Part 1), after episode 21 (part 2) and after episode 27 (part 3).
 
Note: Released at Comiket 102, 103 and Comitia 148.

A romantic comedy centered around "The School Prince" bringing the tense conflict of young boys and girls to the breaking point!

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