A new guard has come to Building 13. 
It’s Hajime Sugoroku’s brother(?), Hitoshi Sugoroku.
This takes Hajime by surprise and he tries to lecture Hitoshi to go home, but he has already been hired.
Meanwhile, Uno and Rock starts doubting Hitoshi, who can pull off a woman’s guard clothes nicely, is actually a gorilla’s... or Hajime’s brother. 
To find out the truth, the 2 announce the beginning of Cell 13’s customary game of tag.
I knew you were studying 
something behind my back.
.كنتُ أعرف أنّك كنتَ تدرس شيئًا من وراء ظهري
Mir fiel ja auf, dass du seit ’ner Weile
insgeheim was am Lernen warst …
Sabía que estabas tramando
algo a mis espaldas.
Sabía que estabas tramando
algo a mis espaldas.
Et moi qui me demandais
ce que t’étudiais en douce…
Sapevo che stavi architettando
qualcosa alle mie spalle.
Sabia que você estava planejando
 algo pelas minhas costas.
Я знал, что ты за моей спиной
к чему-то там готовился всё время.