Union Of Enemies - Chapter 31

Xueyue's life was filled with nothing but unfortunate events. Her mother died giving birth to her, her father abandoned her for another family, her stepsister stole her beloved, and she was framed for a murder she didn't commit.
Sentenced to death by beating, Xueyue thought her horrible life would finally end.

Two women visits Dong Fang Ao’s home. Both women claim to be his betrothed. The first woman wants to break off their betrothal but she lost the betrothal gift. The second woman is holding the betrothal gift and demands Dong Fang Ao to marry her.

Dong Fang Ao keeps both women as guests in his home to find out who is his real betrothed. He is curious about the secretive Cao Zi Yun. If she is his real betrothed then he wants to keep her by his side forever. But her secret is capable of separating them forever.

Kuramoto Daisuke, a freshman in High School was suddenly exposed to someone vanishing in front of him. Turns out he was admitted to a Special Class full of Isekai Heroes that were regularly summoned to Otherworlds since the start of their Middle School. He was told that he was to become their Support to prevent each of the Heroes' fate of dying in the world they were summoned into. Though mediocre, he realized that his ability has a great potential but it needs a lot of hard work on his part.

Unconvinced of being just the Support Character, he vowed to excavate his mediocre ability, all the while supporting the Heroes using it.

And maybe more.

Anyone who could construct a stable Spell Model could become a Wizard — that was the Wizards’ ultimate secret! Having been given a new life as the son of an aristocrat and armed with a super quantum computer from his past life, Spell Models came as easily as breathing to Merlin. With this overwhelmingly huge advantage, would Merlin become the greatest Grand Wizard of all time?

- Description from Novelupdates