Secret

Hana, an apprentice at a patisserie, is secretly going out with the owner, Mr. Naka. Every time she makes a mistake and gets called into his room, she's subjected to sweet, sweet discipline. Despite being serious while working, he's all lovey-dovey when they're alone together. What's more, she seems to have triggered his mischievous streak! "Be sure to wear all this." With those words, he gives her a Santa costume, but the contents are just too extreme......! Their love, shrouded in secrecy, is filled with excitement and heart-fluttering thrills!

(Source: Renta!)