In order to make my apartment more comfortable, I bought a room light. It costs me about $9 which used to be not a big deal at all. It means only 1,000 yen. And you cannot buy a similar room light for 1,000 yen in Japan. Well, these are supporting ideas to justify to buy the room light.
As a result, my decision was right. The additional light makes the living room look warmer and cozier. I might be going to like my apartment.