After getting to Jujutsu High, Gojo and Geto get assigned a new case directly recommended by Master Tengen, who apparently has to merge with the Plasma Star Vessel every 500 years to not lose his humanity.

Source: https://bleedingcool.com/tv/jujutsu-kaisen-season-2-ep-1-hidden-inventory-review-gojo-returns/

Sound Breathing is a derivative of Thunder Breathing, used exclusively by Tengen Uzui.

Source: https://screenrant.com/demon-slayer-breathing-styles-ranked-power/

The golem that is Kokujō Tengen Myō'ō has the fearsome look of a "dharmapala", a protector of the Dharma, and the ropes that bind it are a direct reference to a specific Hellish place – a Naraka, much like the existence of Wolfmen in Soul Society.

Source: https://gamerant.com/bleach-thousand-year-blood-war-part-2-komamuras-bankai-explained/

This takes the total shareholdings for his Tengen Holdings to 1.8 billion and Wigwe’s combined direct and indirect stake to 3.1 billion shares.

Source: https://www.blueprint.ng/herbert-wigwe-increases-stake-in-access-holdings-invests-n14-5bn/