[Oneshot][Body Swap] Sudden Body Swap in the bibliothek~ (Pixiv Fanbox)

--Sudden Body Swap in the bibliothek~

(I made this short project for one of my current Tier 4 supporters as a test.)

(1 short project like this every month might become a new reward for tier 4 supporters)

(I'm not that good with manga/comic layouts, so please give some feedback~)