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Season 1, Episode 4: Kilogram - Attention to Your Weight
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As the students clean the school up, Miho gets to know Tooru, much to Yutaka's chagrin, while the other girls have some fun cleaning the pool. Later, Nagi becomes concerned that she's gaining weight and goes on a diet, but is later convinced that she shouldn't force herself to do so.
All Episodes - Season 1
Episode 1
Love - An April Day
Episode 2
A Bath on a Rainy Day - As Rain Fell
Episode 3
Classmate - All Good to Go
Episode 4
Kilogram - Attention to Your Weight
Episode 5
Sea - An Ocean Far Away
Episode 6
A Midsummer Night's... - A School in Summer
Episode 7
Summer Festival - August's End
Episode 8
New Term - Abnormal Circumstances
Episode 9
Present - Abstract Art
Episode 10
Carbonic Acid - Act Up
Episode 11
Birthday - Allow Me
Episode 12
Alien - Anytime