MTL - Substitute Female Support, Dog Debut - Chapter 1 Jiang Wanying is his fiancee

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.

The 7-year-old little crybaby met 11-year-old big brother who ran away from home.
[This man became the protector of redemption in his life]

The 16-year-old little dragon fell in love with a 20-year-old big brother.
[It’s a pity that the big brother didn’t recognize him as the little crybaby]

The 23-year-old single father and 27-year-old chief executive meets again.
[This time the little crybaby and his big brother are finally together]

Fortunately we met through hundreds of millions of people, Thank God, for letting us break through many obstacles and get back together again, falling in love with you and being with you again is the greatest fortune in my life.

- Description from Novelupdates

What is the meaning of living hundreds of lives?Is it a curse or a hope? Murai grapples with the notion that his endless cycle of death and rebirth is an eternal torment. With no choice or voice, he finds himself like yet another pebble in a vast river of lives.Each death brings a new beginning—a new world awaiting. But this time, he awakens as a duck, complete with wings, a strange beak, and a little stature that doesn't please him.His Cursed Living has led him to this odd form, and though it seems bizarre, he is determined to discover what his tiny legs can achieve and how his mighty wings can confront the challenges ahead. Perhaps even the Gods who condemned him to this fate? Nay. They aren't everything and he knows it.Survival is paramount; the world wants his little life for numerous reasons, but every one of them is the same. He destroys. A strange voice echoes in his mind, whispering levels and abilities or rules about this world called the Battleworld. He accepts that, yet he yearns for revenge—a chance to reclaim his purpose amidst this silly absurdity of walking on two little flat feet.This world will witness his journey as a duck. All shall see his ascension!What can you expect from this novel that sounds ridiculous, as a duck sounds?- A stoic and long-term survival adventure in a high fantasy world with a non-human MC. - Fights, abilities, attributes, and skills and softer litrpg elements. There are 100 levels to beat, with a lot of systems underneath.- Gods and a big world that Boosts and plays with its citizens or almost anything alive, blessings or tricking them.- Some numbers go up. Xianxia and Progression Fantasy elements like magic, techniques, swordsmanship, and world-building. Cultivation and a big world full of mysteries.- MC, Murai, is a weird entity in the overall story. He is a numerous-time reincarnator so expect some shenanigans with it. Discover what he is on about, or who he is or used to be. I wouldn't necessarily call him OP. Sometimes he is, while other times not so much. So much for a duck...This will be a very long series of books, with 1st drafts in November 2023 going up to the 10th book which marks no end in view.

In the beginning, when they all thought that she was “he”….

ML #1: We will be brothers for life!

ML #2: This time I’ll reluctantly let you have the #1 seat.

ML #3: I will properly repay royal teacher!

ML #4: Ah Rong is my closest little brother, I trust him.

Afterwards…

MLs: I’m seriously such a fool.

MLs: What do I do, I think I’m gay. I fell in love with my bro/rival/teacher….

Afterwards….

MLs: I’m straight! As straight as steel!

Note:
MC is a girl crossdressing as a boy, she knows how to fight, and naturally possess the gold finger halo from the author.

All the ML(s) is the same person, 1v1, sc, HE

- Description from Novelupdates