Barely surviving in a barrel after passing through a terrible whirlpool at sea, carefree Monkey D. Luffy ends up aboard a ship under attack by fearsome pirates. Despite being a naive-looking teenager, he is not to be underestimated. Unmatched in battle, Luffy is a pirate himself who resolutely pursues the coveted One Piece treasure and the King of the Pirates title that comes with it. The late King of the Pirates, Gol D. Roger, stirred up the world before his death by disclosing the whereabouts of his hoard of riches and daring everyone to obtain it. Ever since then, countless powerful pirates have sailed dangerous seas for the prized One Piece only to never return. Although Luffy lacks a crew and a proper ship, he is endowed with a superhuman ability and an unbreakable spirit that make him not only a formidable adversary but also an inspiration to many. As he faces numerous challenges with a big smile on his face, Luffy gathers one-of-a-kind companions to join him in his ambitious endeavor, together embracing perils and wonders on their once-in-a-lifetime adventure.

You're the bride I've been searching for all this time. A Japanese-style ayakashi Cinderella story! The ayakashi and humans coexist in harmony. The ayakashi, having superior abilities and beautiful appearances, sometimes find their partner among human women, making them their bride. The bride, in exchange for bringing prosperity, receives absolute love from the ayakashi. Yuzu is constantly compared to her sister, a bride of a demon fox, and is resented by her family every day. One day, when Yuzu just couldn't take things anymore, a man appeared before her on a bridge. This man is the most beautiful man Yuzu has ever seen... and he's calling her his wife?! Just be quiet and let me hold you. The most powerful, cold-hearted ayakashi is pouring his heart out for Yuzu?! (Source: MangaPlaza, edited)

Kuroe Akaishi is an introverted, quiet, and seemingly normal high school girl. Though accustomed to being alone, her dreary days begin to change when she meets Arata Minami, a bright and handsome boy in her class. Despite his popular status, he is kind enough to reach out to an outcast like her; soon, Kuroe finds her heart begins to pound around him. It keeps pounding and pounding and pounding until Kuroe transforms into a monstrous kaijuu! She has a certain affliction: as her embarrassment grows, so do the monstrous appendages from her body; and when it hits a peak, she unleashes the full extent of her transformation. At the same time, beauty meets the kaijuu, and Japan faces off against the looming threat of the mysterious monster. Can Minami accept her feelings, or will he too be frightened off by her colossal form? Depending on his decision, the world may experience the full devastation of a girl's heart-pumping, youthful love.

Second season of Otome Game Sekai wa Mob ni Kibishii Sekai desu.