The Contract Book Is Actually a Tsundere Witch

From people's devout prayers, the coiled heart of the clouds releases a "drop" of hope.

They call themselves Magi. With wondrous powers, they bring down rain that bestows blessings, save the corrupted land, and join the races of the continent in defeating evil spirits...

After a brief peace, the Magi inexplicably descend into chaos, and they take up the killing anew.

In the end, the power of the Magi is used to seal the Magi away.

They sow seeds, giving rise to a new will...

Unbound by the seal, they follow their own wills and walk across this continent.

Allen is saved by a newly born Magus and forms a pact with her. Thus begins his journey through the various nations.