| Song | バースデイ・ソングー劇中version |
| Artist | 高梨康治 |
| Album | ログ・ホライズン オリジナル サウンドトラック 2 |
| Download | Image LRC TXT |
| [00:08.635] | 海風アスファルト 坂超えたら |
| [00:16.143] | 次の街が見える 旅はこれから |
| [00:25.664] | 小さな合図に 弦を鳴らして |
| [00:32.166] | 窓を開け放ち 今日も始めよう |
| [00:40.415] | もしこの歌が 聞こえなくても |
| [00:47.917] | 小さなこの世界に 閉じ込められていても |
| [00:54.669] | 大丈夫 ここにいるから |
| [01:00.416] | 胸の痛む昨日を 書き換えてしまうの |
| [01:09.171] | 忘れないキラキラ 虹をふりまき |
| [01:16.178] | わたしの野望が 音符になる |
| [01:21.920] | 忘れないキラキラ キミと指切り |
| [01:28.916] | 臆病なリュートも 昨日は違うわ |
| [00:08.635] | hai feng ban chao |
| [00:16.143] | ci jie jian lv |
| [00:25.664] | xiao he tu xian ming |
| [00:32.166] | chuang kai fang jin ri shi |
| [00:40.415] | ge wen |
| [00:47.917] | xiao shi jie bi ru |
| [00:54.669] | da zhang fu |
| [01:00.416] | xiong tong zuo ri shu huan |
| [01:09.171] | wang hong |
| [01:16.178] | ye wang yin fu |
| [01:21.920] | wang zhi qie |
| [01:28.916] | yi bing zuo ri wei |
| [00:08.635] | hǎi fēng bǎn chāo |
| [00:16.143] | cì jiē jiàn lǚ |
| [00:25.664] | xiǎo hé tú xián míng |
| [00:32.166] | chuāng kāi fàng jīn rì shǐ |
| [00:40.415] | gē wén |
| [00:47.917] | xiǎo shì jiè bì ru |
| [00:54.669] | dà zhàng fū |
| [01:00.416] | xiōng tòng zuó rì shū huàn |
| [01:09.171] | wàng hóng |
| [01:16.178] | yě wàng yīn fú |
| [01:21.920] | wàng zhǐ qiè |
| [01:28.916] | yì bìng zuó rì wéi |