| Song | Step by step |
| Artist | 古川美季 |
| Album | Mirrors |
| | |
| 颊を濡らす雫を、小さな手で拭った | |
| 续く雨 | |
| 远くカモメが鸣いていた | |
| 枯れるまで | |
| 明日に旅立つサイレン | |
| さあ… | |
| 君に届け sign to heart…to heart… | |
| 今以上になる! | |
| 永久に step by step ah for everything | |
| ゆえに step by step ah 想い迂める未来! | |
| 永久に step by step ah | |
| 今信じた时间を 光るようになぞった | |
| 夜明け前 | |
| きっと谁もが抱いていた、愈す风 | |
| そっと放ってみようか | |
| さあ… | |
| 永久に step by step ah for everything | |
| ゆえに step by step ah for everything | |
| 君の热を夺うような 昨日にサヨナラ | |
| 永久に step by step 想いこめる未来!! | |
| 永久に step by step ah… |
| jiá rú nǎ xiǎo shǒu shì | |
| xù yǔ | |
| yuǎn míng | |
| kū | |
| míng rì lǚ lì | |
| jūn jiè sign to heart to heart | |
| jīn yǐ shàng! | |
| yǒng jiǔ step by step ah for everything | |
| step by step ah xiǎng yū wèi lái! | |
| yǒng jiǔ step by step ah | |
| jīn xìn shí jiān guāng | |
| yè míng qián | |
| shuí bào yù fēng | |
| fàng | |
| yǒng jiǔ step by step ah for everything | |
| step by step ah for everything | |
| jūn rè duó zuó rì | |
| yǒng jiǔ step by step xiǎng wèi lái!! | |
| yǒng jiǔ step by step ah |