What's with the Bag, Kamiyama-san?

On his very first day of starting high school, Namito Kominato's homeroom teacher has him sit behind a strange girl who wears a paper bag over her head and is always soaking wet with sweat. Her name is Samidare Kamiyama, a extremely shy girl with severe social anxiety. Ultimately, she meets Hinata Arai (the student council president who's kind and helpful, but alarmingly obsessed with her uniform) and Harusame Amano (a girl who only speaks to a cardboard cutout of a magical girl). ___ [Alt official source](https://mangaplanet.com/comic/63800f8c032ad)

26 chapters

• Chapter 26 — Eternal and Imperishable - Santa Knows Everything
• Chapter 25 — Mutual Annihilation - Good and Evil, Companions and Strength
• Chapter 24 — Survival of The Fittest - The Mother is Too Strong
• Chapter 23 — Six Roots Cleansed - The Heroine Struggles
• Chapter 22 — Old Rain, New Rain - Kamiyama-san's Battle
• Chapter 21 — One Againts A Thousand - What The Hero Was Lacking Is...
• Chapter 20 — Fighting Alone - I Need Your Help
• Chapter 19 — Late Summer - Little Bigman, Sin and Regret
• Chapter 18 — Fateful Bonds - The Spoken Past and Encounters
• Chapter 17 — Heart to Heart - Words are Everything
• Chapter 16 — Water, Water, Endless Water - Our Summer is Just Beginning
• Chapter 15 — I Want To Have A Groundbreaking First Experience
• Chapter 14 — Even Through Rain and Thunder - There is Fun to be Found
• Chapter 13 — Too Insightful - But, Also a Nuisance to Others?
• Chapter 12 — Repay Kindness - The Feelings She Can't Take Off
• Chapter 11 — Dread and Aversion - One You Shouldn't Look at.
• Chapter 10 — Rally - Here it comes! The Menacing Fusion of Two Bodies!
• Chapter 9 — Battle Start - Their Communication Ability Will Decide Who Wins...?
• Chapter 8 — People Who Can Stand Against New Difficulties
• Chapter 7 — And the First Activity is...
• Chapter 6 — Rivals Finding Themselves in the Same Place, Now Turned into Allies
• Chapter 5 — A Group of Friends Gathers to the Same Hole...
• Chapter 4 — A Battle For A New Beginning
• Chapter 3 — When Dreams Come True
• Chapter 2 — An abduction - When she gets wet
• Chapter 1 — Chance Encounter 1, The Girl in a Paper Bag