Mahou Gakuin no Ochikobore. Tensai Elf Shoujo ni Zenra Kaihou no Mahou o Kaketemita

A male student at a magic academy uses an ancient 'wish realization' magic on a genius elf girl, Celina, in the library. The spell causes her to become incredibly hot, leading her to strip and masturbate in front of him. He then joins in, fingering her. The male student continues his sexual encounter with Celina, the high elf top student. They have sex in the library, and she performs fellatio on him. They are interrupted by other students but resume their activities. The male student and Celina are in a library. Celina is affected by a spell that makes her clothes disappear and increases her magic power. The male student notices scales appearing on his hand. Later, Celina is shown highly aroused.