HP: The Arcane Thief - Chapter 154 - : Atlantis It is

Greed, envy, anger, gluttony, lust, sloth, prideThe 'Black Book' records seven sources of sin, which are also seven steps to ascend to godhoodOnce, I thought there would always be one sin suitable for meBut I never expectedEvery volume of the twelve military letters bears my name!

Koi Niles has always been alone. Quiet halls and empty lunchtimes are his familiar companions. Grades matter to him; they’re his way out.Ashley Miller owns the school corridors. Captain of the ice hockey team, confident smile, and a name everyone knows. When a class project pairs them together, Connor sees a chance. But Ashley disappears, leaving Connor to carry the weight.Days later, under the harsh lights of Connor’s part-time job, Ashley returns. This time, it’s different. He stands up for Connor, turns the tide against the bullies. A simple act of kindness that feels new and warm.They share moments—short walks, brief talks, the understanding of two worlds colliding. Friendship grows where none was before.But Ashley holds a secret behind those bright eyes. One evening, worry leads Connor to Ashley’s door. What he discovers there changes everything he thought he knew.

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

Chen Shen traveled to a world of immortals and became the corpse collector of the Xianzong, burying the dead disciples every day.

To bury the disciples of the seventh level of Qi training, to obtain their immortal skills and experience, and to obtain part of their spiritual roots.

To bury the disciples of Daofeng’s inner disciples in the array, get the spirit-gathering array, the killing array, and the experience of the array.

Bury alchemy masters, get Peiyuan alchemy recipes, build foundation alchemy recipes, and get alchemy master experience packs.

Bury super geniuses, complete spiritual roots, and achieve heavenly spiritual roots…

Twenty years later, Chen Shen, the body collector who has grown into a Jindan Zhenjun but is still low-key, discovered that the corpses sent this time were unusual, as if they were from the whole sect!

- Description from novelbuddy