Bleached InuYasha Galaxy

Let's do it. I'll add something first.
enter shunpo mode and just walk around.

An altar where you can sacrifice players to immortals.

Stat gaining chance increase job commodity.
Exp job commodity.

Really powerful real shikon shards.

Fake shards that are actually crystallized venom, like in inuyasha.

a cap on yen, or a larger yen limit.

Little clans/classes with elemental power.

Houses.
Achievement titles for each quest completed.
Black market to sell organs.
Players gotta pay for new areas.
Lots of apartments and houses.

Such a high shard rate when people aren't playing doesn't really encourage people to stay on, so change that.
shard rate goes up even higher the more players that are on. n*r + (n(n+1)/2)

Investing in businesses.
Making cake.
Jobs.

troubleshooting-like help system. ask it questions.

counterattack skill.

Agility/vigor increasing movement speed. cost more stamina to enter a room.