Upon death, Yamada's spirit was transferred to Soul society and he got the 'Yearly Sign-in System'.

Each year he will get a sign-in reward;

Sign-in successful! Please select a reward:

1) Melee Zanpakuto

2) Kido Zanpakuto

3) Elemental Zanpakuto

4) Unclassified Zanpakuto

Sign-in successful! Please select a reward:

1) Lieutenant Seat of the 13th Division

2) Captain Seat of the 5th Division

3) Captain Seat of the 3rd Division

4) Captain Seat of the 9th Division

......

400 years later,

Aizen Sōsuke: I'm the one who has surpassed both Shinigami and Hollows, How can you beat me?!

Yamada: The birthday gift..

Yhwach: ...