Heaven's Memo Pad (2011) : 1x4

Minli's sarashi is stolen by a stalker and so the gang decides to go out and find the culprit. Alice attempts to act arrogant when Minli asks for her help, but Minli quickly stops this by picking her up. Minli initially refuses Alice's help, but after some comments from Narumi, she changes her mind. They start by investigating the strange man that has been coming into the ramen shop. He buys a ramen, takes one sip, then pays and leaves. They try to tail him, but lose him. Later, Narumi is telling Alice about a lock that Minli refuses to have changed. Alice realizes something and tells everyone to drop the security around the shop. Major gives Narumi a strange ball and tells him to use it if he sees the intruder. Narumi throws it at the suspicious man and it turns out to be a flashbang. The man turns out to be an executive from a lingerie department.