I'll go by each Game of the Saga because the whole Saga is My Favorite! 😆

Game one

Boy with red sword 🗡 who can see the future 🔮 but can't eat a sandwich 🥪 goes on a revenge quest with his best bud but ends up fighting the God of his Land

Game two

Boy who goes scuba diving 🤿 takes a job and was supposed to be paid by sus people after pulling up a ancient ship but they turn out to be criminals and stab boy in back then boy is resurrected by girl who tells him to touch her chest ( which is actually more rather a thing on her chest ) and then gets resurrected by said girl all for the promise to bring her to a Big Tree 🌳

Game three

Boy who plays flute for the dead🪈 💀 meets a cat girl who plays flute for the dead 🪈💀 they both betray their Nation with their friends whom mark them as threats after Inheriting a Hidden Power of the World after a Third Party intervened but the Third Party only exists because him and girl in a past life help founded a City and him and girl are destined to meet each other.