This is bullish. Imagine if other banks go in that direction.
Do you really want to sell your coins?
Have you read the article?
The bank is known to be working on issuing its own cryptocurrency. The plan as it seems now is that by controlling the exchange where people can trade this MUFG Coin, the bank could suppress drastic fluctuations in its price so it can be used for shopping, settlements and remittances stably. The idea is that the new cryptocurrency will be kept pegged at around JP¥1, but not fixed in advanced so as to bypass regulations regarding issuing and transmitting such private money in Japan.
So, what does this have to do with
BTC and why would this be bullish?
It's just another centralized coin with pegged value to the ¥.