Notebook II: Bōken Note-chū (NOTEBOOK II～冒険ノート中～, Mid-Adventure Notes, pronounced Nōtobukku Tsū Bōken Note-chū) is Kurumi Enomoto's second studio album, released on January 21, 2009 (2009-01-21). It debuted at #43 on the Japanese Oricon album charts, and charted in the top 300 for four weeks.

The album was preceded by five singles, though "Bōken Suisei", the preceding single and ending theme song for the anime Tales of the Abyss, was the only that charted. Three other songs had tie-ins: "Real" (リアル) was used as the NHK-FM radio show Music Square (ミュージック・スクエア)'s 2007 October/November ending theme song, "Mirai Kinenbi" (未来記念日, Future Day to Remember) was used as the CDTV March ending theme song as well as sharing a title with Enomoto's cellphone serialised novel, and "Yesterdays (Taisetsu na Okurimono)" (イエスタデイズ～大切な贈りもの～, Yesterdays (Important Present)) was used as Kubota Takashi-directed film Yesterdays' theme song.

The song "Emerald" (エメラルド) was released as a radio single at the time of the album's release, reaching #83 on the Billboard Japan Singles Top 100 chart. No music video was produced, however.

The album features 11 previously released songs from singles, along with four new tracks. All of the songs (not counting the bonus hidden tracks) from the "Yūhi ga Oka/Minna Genki", "Mirai Kinenbi" and "Bōken Suisei" singles feature on the album, though not "She" from the "Real/She" single. "Cure", a B-side on the "Real/She" single is featured on the album with a complete new arrangement.

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