Asano Inio Manga

Witness the titular Punpun - who is depicted as a tiny, caricatured bird in an otherwise normal human setting - as he copes with his dysfunctional family and friends, his love interest, his oncoming adolescence and his hyperactive mind.

Large mysterious alien ships have been looming above Japanese towns for three years, filling the sky Everything changed three years ago. And yet, nothing has changed. No weapon used against the invaders' ships had any success, beyond destroying part of japan and leaving its economy in shambles. JSDF is fighting a guerrilla battle against the aliens all over Japan. America is joining the 'war' effort with more aggressive tactics, dividing Japan over the pacifist principle laid out in Art9. of their constitution. But this may just be the mundane story of young middle schoolers. "No matter what happens, I won't back down. At least not until this world filled with lies and deceit crumbles away. (...) The real threat to humankind is not invaders, but me."

From Kotonoha:Koume Sato and Kosuke Isobe are two teenagers living in a sleepy seaside town. After getting used and dumped by her crush, the emotionally damaged Koume decides to start a sexual relationship with Kosuke, without any emotions involved. However, they both soon discover that sex with no strings attached do lead to unexpected complications, not just for themselves but also the people surrounding them.