Because Yamada copied Nene’s "Charm" power, Nene accidentally falls in love with him after they kiss. This causes her significant emotional distress as she realizes her feelings are artificial yet intense.
The episode concludes with Ushio providing a notebook from a previous Supernatural Studies Club, revealing there are seven witches in total, sparking the group's mission to find them all. 3. Voice Cast (English Dub) Yamada-kun to 7-nin no Majo (TV) (Dub) Episode 5
After a literal slap of sense from Shiraishi, Yamada agrees to help Nene. He kisses her again to negate the charm, though he remains firm that he cannot return her romantic feelings. Because Yamada copied Nene’s "Charm" power