天井システム

• Reading: てんじょうシステム
• Romaji: tenjō shisutemu
• Kanji breakdown: 天 (heaven/sky) + 井 (well/ceiling) + システム (system, from English) → ceiling/pity system
• Pronunciation: /teɴ.dʑoː ɕi.sɯ.te.mɯ/

Meaning

Pity system — a gacha game mechanic that guarantees a rare item after a set number of pulls.

天井 (ceiling) + システム (system) refers to the mechanic in gacha games where after spending a certain amount (hitting the 'ceiling'), players are guaranteed the featured item or character. The concept emerged as a consumer protection measure after controversies about gacha spending. Having or lacking a 天井 is a major factor in how players evaluate gacha games, and the term is used metaphorically for any situation with a guaranteed outcome after sufficient effort.

Examples

1. 天井システムあるから安心して回せる。 There's a pity system, so I can pull without worrying.
2. 天井まであと30連だけど石が足りない。 I'm only 30 pulls from the ceiling but I don't have enough gems.
3. 天井なしのガチャは怖くて回せない。 I can't bring myself to pull on a gacha with no pity system.

Usage Guide

Context: gacha gaming, mobile games, gaming discussion

Tone: strategic, relief-oriented

Do Say

• 天井システムないゲームはもうやらない (I won't play games without a pity system anymore)
• 天井まで貯めてから回す派 (I'm the type who saves up to the ceiling before pulling)

Don't Say

• 天井まで回すのが前提って考え方は課金沼の入り口 (Thinking you should always go to the ceiling is the gateway to spending addiction)

Common Mistakes

• Not knowing that 天井 amounts vary greatly between games (200 pulls, 300 pulls, etc.)
• Confusing 天井 (guaranteed pity) with 確率アップ (rate up, which only increases probability)

Origin & History

Compound of 天井 (ceiling) + システム (system). The concept was popularized after Granblue Fantasy introduced a spark/ceiling system in 2016 following a controversy where a player spent over 700,000 yen trying to get a character. The term 天井 predates this as gambling terminology.

Cultural Context

Era: 2016 onward, after Granblue Fantasy sparked widespread adoption

Generation: Millennials and Gen Z gamers

Social background: Mobile gaming community

Regional notes: Used across Japan. Japan's gacha regulation discussions have made 天井 a consumer rights topic.