It was another sunny day in inazuma town. 

"Morning endou-kun." Says young fuyuka. "Hey fuyupee." Said endou with a smile. "So fuyupee when we get home want to watch a movie with me and kazemaru-san?" He asked. Fuyuka nodded. "Ohhh~someone has a girlfriend." Teased fudou akio who was behind endou and fuyuka. "N-no I don't!" Said endou as he started blushing. You're blushing." Said fudou with a smirk. "Sh-shut up!" Said endou as he ran off. "Fudou-San! Why'd you do that?!" Asked fuyuka. "You know I was thinking, endou and natsumi are so cute together!" Said fudou. "Wow, you really had to go off saying that?" Asked fuyuka. Just then fuyuka saw a familiar face. She ran over to it. "How do you do tachi?" Asked fuyuka. Tachimukai turned and saw fuyuka. "Um, I don't know who you are new face." Said tachimukai. Fuyuka was shocked. "But, we met back in 3rd grade." Said fuyuka. "You must've mistaken me for someone else, sorry." Said tachimukai. 

That evening at endou's house.

Fuyuka curled up next to kazemaru as he blushed. "So what movie do you guys want to watch?" Asked endou looking at the movies. Well...it's getting close to Christmas so...how about home alone 2?" Suggested kazemaru. "Sure, I was thinking about that anyway." Said endou grabbing the dvd for home alone 2. Suddenly fuyuka got a flashback.

Flashback,

Fuyuka started at tachimukai for a second. "Want to watch a movie at my house?" She asked. Tachimukai nodded. "Okay." Said tachimukai. "Great, thanks tachi!" Said fuyuka. 

That evening at fuyuka's house.

Tachimukai sat down on the couch as fuyuka tried yo decide what movie they should watch. "What movie do you want to watch?" Asked fuyuka. "Well...it's almost Christmas so how about home alone 2?" Suggested tachimukai. Fuyuka smiled. "Yeah! Home alone 2 it is then!" Said fuyuka grabbing the dvd for home alone 2.

Flashback ends.

"Uh fuyuka the movie's about to start." Said kazemaru bringing fuyuka back to reality. "Oh sorry, play the movie." Said fuyuka. "Alright." Said endou as he clicked the "play movie" option. 

After the movie.

"Bye endou!" Said kazemaru. "Bye endou-kun!" Said fuyuka as she went home. "Bye kazemaru-San! Bye fuyupee!" Said endou. 

The next day,

Fuyuka saw tachimukai again. "Hey tachi!" She said waving. Tachimukai remained silent and looked depressed. "What's wrong tachi?" Asked fuyuka. "Oh it's you again! Nothing's wrong, I'm fine." Said tachimukai. "What happened to "oh fuyupee-chan, don't worry, I'm fine."?" Asked fuyuka. "Do you need to lie down?" She asked as tachimukai shook his head. 

That's strange, tachimukai doesn't remember who his childhood friend was, fuyuka is also confused. Looks like she with the help of kazemaru are gonna have to find out what happened to him, why he doesn't recognize fuyuka. Could it be that he has...amnesia?