BTN (Before the New-School-Year-Ceremony) (BTN（Before the 入学式）BTN（Before the Nyūgakushiki）?) is the 1st side story of the 7th volume of the Attack on Titan: Junior High manga, written and illustrated by Saki Nakagawa.
Having been homeschooled their whole lives, the twoInocencio siblings have been forced to attend public school. Upon arriving, Sharle bumps into another student; having thought that whoever she bumps into will be her junior high crush, Sharle is terrified when she realizes that she bumped into a Titan student. Another kid comes over and knocks the Titan aside, only to be quickly beaten by Xavi after getting a reward from Sharle.
Summary
The Inocencio siblings arrive at Attack Junior High
Two siblings arrive at Attack Junior High and one of them, Sharle, inquires as to why the school is completely surrounded by walls. The other, Xavi, reminds her that they will have to pay attention now that they are attending a public school. As they get closer, Sharle bumps into a passing Titan student. Recalling how she believes that whoever she bumps into will be the one whom she is destined to have a crush on, Sharle becomes terrified when she sees that it is a Titan.
Suddenly, another kid appears and is able to push the Titan aside. He warns them to stay away from the Titans. The kid motions to a loaf of bread, and Sharle, believing him to be hungry, offers it to him as a reward. Xavi runs over and asks if the kid gave Sharle any disease due to his presence, refusing to believe that he merely helped Sharle with the Titan. Calling the kid a hobo, Xavi punches him in the face and knocks him unconscious.
Kuklo falls asleep on Sharle
Sharle goes to tend to him and learns that the kid's name is Kuklo; when asked what happened, Kuklo responds that he had no energy to fight Xavi after eating the bread Sharle gave him. After Kuklo falls asleep, Sharle's heart begins pounding, and she wonders if Kuklo is the person that she is destined to have a school crush on.
