The manga centers on an app called "SAiKO" that is popular with girls. The app has a female AI that answers questions to the best of its ability, including how to put on makeup and relationship advice. While at first, the users of the app seem to be happy, but danger soon comes to them.
 
(Source: Anime News Network)

An anthology comic of Crows by various mangaka to celebrate the 25th anniversary of the series. 

Volume 1 (2016/06/08) 
1. Setoutsumi Gaiden (セトウツミ外伝) [Konomoto Kazuya] 
2. Rakugaki (ラクガキ) [Fujiwara Satoshi] 
3. Crows vs. Hakaiju: Saikyou yori Saikyou (CROWS vs. HAKAIJU～最強より最凶～) [Honda Shingo] 
4. Crows Ladies (クローズLadies) [Suzuki Dai] 
5. Housen Tetsu no Okite (鳳仙鉄の掟) [Hirakawa Tetsuhiro] 
6. Sei & Seiya vs. Suzuran!! (セイ&セイヤvs.鈴蘭!!) [Kuwahara Shinya] 
7. Fake Fur: Fujimi no Haiji (FAKE FUR -不死身のハイジ-) [Ooishi Hiroto] 
8. Crows St. Emperor (クローズSt.Emperor) [Story: Kawata Yushi, Art: Yukito Imouto]
 
Volume 2 (2019/02/08) 
1. Sono Otoko, SAiKO ni Tsuki (その男、SAIKOにつき) [Honda Shingo] 
2. Nakidokuro (ナキドクロ) [Hirakawa Tetsuhiro] 
3. Karasu no Fun (カラスのフン) [Ozawa Toshio] 
4. Others (アザーズ) [Fujiwara Satoshi] 
5. Hokuto no Ken: Ichigo Aji x Crows II (北斗の拳 イチゴ味×クローズII) [Story: Kawata Yushi, Art: Yukito Imouto] 
6. Karasu no Rock and Roll (カラスのロックンロール) [Asada Yukai] 
7. Ame Nochi Hare (アメノチハレ) [Saiwaki Masayuki]
 
Volume 3 (2019/10/08) 
1. Crows Eraser (クローズERASER) [Araki Hikaru] 
2. Densetsu ga Ita Machi (伝説がいた街) [Yamamoto Shintarou] 
3. Makeinu (マケイヌ) [Nakamura Yuuji] 
4. Keii wo Haraubeki Teki (敬意をはらうべき敵) [Saitou Shuuhei] 
5. Suzuran Koukou 1-nen: Mayama Yukinari no Yabou (鈴蘭高校1年 真山行成の野望) [Ameno] 
6. Crows Up (クローズアップ) [Takahashi Shinsuke] 
7. Crows Ladies (クローズLadies) [Suzuki Dai]

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