Extra

Extra is the seventy second and a half chapter of the Nisekoi manga series written and illustrated by Naoshi Komi, published weekly in the magazine Weekly Shōnen Jump.

Summary
Chitoge and Tsugumi enjoy their time together in the bath. The bath reminds Chitoge of her and Tsugumi's childhood days and proceeds to show Tsunami a water gun tricked Tsugumi had showed her when they were children.

Tsugumi steadily watches Chitoge and is stunned to see her do the water trick as a large amount of water shoots to the ceiling. Chitoge then shows Tsugumi several other bath techniques she had made to play around the bath. This causes a cautious Tsugumi to watch Chitoge's every move in order to protect her from accidentally hurting herself.

In the end, Tsugumi finds that playing around in the bath with Chitoge could be a bit troublesome and is one of her hardest missions. Chitoge and Tsugumi leave the bath exhausted after all the bath tricks Chitoge has displayed.

Trivia

 * This chapter is a special extra chapter.