Ameri, Yuu

This tale begins before my time. In the Zeode Fortress of the Free State, locked in war with the Empire, there dwelt a beast that preyed upon all who dared invade...

(Source: MANGA Plus)

Chocolate Lily no Kaibutsu

The Beast of the Chocolate Lily

チョコレートリリィの怪物

Kamoshida, Hajime

Takagi, Shuuei

Earth: the third planet of the solar system, and the cradle of humanity. As time marched on from humanity's birth, breakthroughs in science and biotechnology promised to end suffering and conflict, ushering in an age of everlasting prosperity... or so it was believed. Now, the year is Koureki 2030. The Earth, once humanity's sanctuary, teeters on the brink of collapse. Only 258 survivors remain. And with them, a single Gundam.

(Source: Kadokawa, translated)

Kidou Senshi Gundam Eight

Mobile Suit Gundam Eight

機動戦士ガンダムエイト

Tsukiji, You

After a terrible accident left Seita hanging between life and death, it was Amé, a genius young inventor, who saved him...!

(Source: MANGA Plus)

Good Luck Time Machine

グッドラックタイムマシン

Miyaumi, Tomotaka

Circumstances lead Ichirou Satou to transfer to a new school where he just wants to live a peaceful life, but a girl from his class piques his interest...

(Source: MANGA Plus)

Oni no Ko

Demon Child

鬼の子

Yokomine, Gaku

The sacred maiden of the Kazami clan, a family of renowned onmyouji, can wield immense power so long as she maintains her purity. But when her childhood friend, Kyousuke, tags along on her missions...!

(Source: MANGA Plus)

Himorogi no Miko

Maiden of the Sacred Shrine

神籬の巫女

Harukawa, Jun

A secret relationship with a mysterious entity... In a world with demonic monsters called Shenguai, a young orphan named Kou lives alone in the mountains with a mysterious Shenguai named Chiyou. But Chiyou has a tragic past, and Kou will have to give all of himself in order to save her. A beautiful East Asian adventure now begins!

(Source: MANGA Plus)

Kaedegami

カエデガミ

Aien, Kien

Sakurai, Yutaka

Kochira, Shuumatsu Teitai Iinkai

This Is the End Stagnation Committee.

こちら、終末停滞委員会。

Mishima, Yomu

Odorotanuki

Otome Game Sekai wa Mob ni Kibishii Sekai desu: Kyouwakoku-hen

乙女ゲー世界はモブに厳しい世界です【共和国編】

Mano, Roka

His childhood friend, the archery girl, is a rival, an angel, and a cupid.

(Source: Kodansha, translated)

Cupid no Hatsukoi

Cupid's First Love

クピドの初恋

hu-ko

Hata, Ryousuke

Lenas, the "Strongest Hero," defeated the Demon King only to be left on the verge of death by a deadly poison. To save his life, he was placed into a cryogenic stasis for a century until a cure could be created. During that time, the one who waited faithfully for him was his wife and fellow party member, Fina, an elf!

Finally reunited, the couple set off on a honeymoon across a world where they are now hailed as "Legends"! They hide their true identities to enjoy some uninterrupted lovey-dovey time, but trouble seems to break out wherever they go! Unable to ignore those in need, the former strongest hero and his wife begin a journey to correct the world's wrongs while flirting nonstop!

All with power that defies logic.

(Source: Hero's, translated)

Elf-zuma to Hajimeru Yuukyuu no Tabi: Densetsu no Yuusha, Aisuru Elf to Tomo ni 100-nen Mae ni Sukutta Sekai wo Tabisuru

エルフ妻と始める悠久の旅〜伝説の勇者、愛するエルフと共に100年前に救った世界を旅する〜

Shiishihi

Tsukikoshi, Yuuki

Tanka, a high school student with no hopes for the future, travels back in time to Ashikaga Academy, the largest educational institution for military strategists during the Sengoku period.

12 Manga Like Full Metal Panic! Sigma