Odd one out
False Friends
Holidays
100

Snake, Worm, Straw

Straw (inanimate object)

100

カンニング

To cheat on a test
Cunning: ずるがしこい/ずるい

100

New Years Day

January 1st

200

Misaki, Naoshi, Reina


Reina (teacher)

200

サイダー

Fizzy drink/Pop/Soft drink
Cider: アルコールの種類

200

Christmas Eve

December 24th (typically) 

300

Red, Yellow, Blue, Black

Black (Not in rainbow)

300

ダイエット

Weight loss regimen
Diet: じょうしょく

300

Aaron's Birthday

29th October