A little naughty and cute girls are monopolized ♪ [Holy Night just below the sudden turn] On Christmas Eve night, Aisha, who was working for Santa, inadvertently slips her leg at her last destination and faints. The man who lives in her house misunderstands Aisha as a gift ...!? [Small devil ☆ Anna] Her younger sister Anna comes to play with Kanako. She heard from Yurie that she was in a relationship with Kanako and Yuichi, but the atmosphere was awkward. Anna goes to Yuichi's room to deliver her forgotten items and becomes alone. Anna, who is curious about nasty things ...!? [Holy Knight Happy Bell] A year after Aisha's first arrival, Eve, Aisha's younger sister, Sasha, came to the man's house. She brought a naughty Santa Girl outfit for Sasha. She wore this and she slaughtered the man, accompanied by a message from her mother asking her to show her grandchildren soon !! [Musume to open her] Recently, Kanako was worried that Yuichi's attitude was awkward. Kanako receives advice from Anna and rushes into Yuichi's room at midnight. So Yuichi made a confession to Kanako!