A mangaka summons a spirit that helps him meet deadlines at the cost of his health.

A god of a different world had abruptly appeared in Kamiya Yato's classroom and forcibly summoned the entire class to his world... except for him—because he was sleeping in a seat in the corner of the class, the round summoning magic circle didn't reach him—and he ended up staying here on Earth, but with brand-new skills. After he made it through a whole year full of police interviews and journalism reports, he finally became a high school student, but the quiet days he had hoped for were far from over—be it terrorists who decide to occupy his school or even monsters from different world, one by one new incidents take place in the town he lives in... Will a boy without any motivation be able to save the world?

From Cave Scanlations: From a forgotten tale passed down in a small rural village comes a warning to not look back when it's dusk. If you do, you may spy Komachi, a young, doll-like girl dressed in a bell-adorned kimono waiting to lead you through a gate that lies within a crack between the world's dimensions. She draws you to a very special antique shop, Kaijidou, where "Origins", the memories or feelings that reside within ancient objects, are bought.

16-year old Nashi has problems communicating with females. Wanting to change for the better, he reached out to his childhood female friend for help. To his utter surprise and embarrassment, the "method" his friend came up with is for him to cross-dress and work at a female underwear store...? (Source: Japanese Publisher, translated)

A manga based on the visual novel of the same name.

A boy girl in a girls' school! The high-tension school ninjutsu comedy drawn by Kiku Ueda, full of dangerous missions, begins!