Episode 5

Kazuki experiences jealousy and insecurity when it turns out Chihaya and Yuuji share common interests and are becoming close friends. A visit by Chihaya to Kazuki's home turns sour when Yuuji holds a photo shoot and Kazuki feels like a fifth wheel, causing her to lash out in anger at both him and Chihaya, causing Yuuji to respond in kind and leaving their friendship apparently in shambles, to Chihaya's dismay.