Rakuten Kobo e-book ranking 2018
Below are the top 100 overall ranking by series.
Other yearly list (ebookjapan , Amazon (physical), Amazon (Digital), Apple Books, more coming soon)
1. Kingdom (Yashuhisa Hara)
2. Attack on Titan (Isayama Hajime)
3. One Piece (Eiichiro Oda)
4. Hunter x Hunter (Yoshihiro Togashi)
5. Golden Kamuy (Satoru Noda)
6. My Hero Academia (Horikoshi Kohei)
7. Nanatsu no Taizai (Suzuki Nakaba)
8 Tensei Shitara Suraimu Datta Ken (Story: Fuse | Art: Taiki Kawakami)
9. Haikyuu!! (Furudate Haruichi)
10. Chihayafuru (Suetsugu Yuki)
11. Mangaka to Yakuza (Koda)
12. Tokyo Ghoul:re (Ishida Sui)
13. The Promised Neverland (Story: Shirai Kaiu | Art: Demizu Posuka)
14. Yowamushi Pedal (Watanabe Wataru)
15. Uchuu Kyoudai (Koyama Chuuya)
16. Detective Conan (Aoyama Gosho)
17. Bleach (Kubo Tite)
18. Giant Killing (Story: Tsunamoto Masaya | Art: Tsujitomo)
19. Nagi no Oitoma (Konari Misato)
20. Hana Nochi Hare - Hanadan Next Season (Kamio Youko)
21. Naruto (Kishimoto Masashi)
22. Overlord (Story: Maruyama Kugane | Illustration: so-bin) [Light Novel]
23. Beastar (Itagaki Paru)
24. Akatsuki no Yona (Kusanagi Mizuho)
25. Gintama (Sorachi Hideaki)
26. One Punch-Man (Story: ONE | Art: Murata Yusuke)
27. Konodori (Suzunoki Yuu)
28. Hibiki - Shousetsuka ni Naru Houhou (Yanamoto Mitsuharu)
29. Wotaku ni Koi wa Muzukashii (Fujita)
30. Days (Yasuda Tsutoshi)
31. Shokugeki no Soma (Story: Tsukuda Yuto | Art: Saeki Shun)
32. Otaku mo Koisuru Nikushoku Shinshi - Zetchou! Oji-sama Technique (Yuzuki Chihiro)
33. The Fable (Minami Katsuhisa)
34. Gomi Yashiki to Toy Poodle to Watashi (Ikeda Yukio)
35. World's End Harem (Story: LINK | Art: Shouno Kotarou)
36. Sora wa Akai Kawa no Hotori (Shinohara Chie)
37. Hinamatsuri (Ohtake Masao)
38. Kūbo Ibuki (Story: Osamu Eya | Art Kaiji Kawaguchi)
39. Karakai Jozu no Takagi-san (Yamamoto Souchirou)
40. Mix (Adachi Mitsuru)
41. Kimi ni Todoke remastered edition (Shiina Karuho)
42. Koi wa Ameagari no You ni (Mayuzuki Jun)
43. Yuru Camp △ (Afro)
44. Tsubaki-chou Lonely Planet (Yamamori Mika)
45. Major 2nd (Mitsuda Takuya)
46. Ashi-Girl (Morimoto Kozueko)
47. Perfect World (Aruga Rie)
48. Piano no Mori (Isshiki Makoto)
49. Mahou Tsukai no Yome (Yamazaki Kore)
50. Nanatsuya Shinobu no Housekibako (Ninomiya Tomoko)
51. Ao Ashi (Story: Kobayashi Yuugo, Ueno Naohiko | Art: Kobayashi Yuugo)
52. Watashitachi wa Douka Shiteiru (Andou Natsumi)
53. Usokon (Tokina Kiwi)
54. Hoozuki no Reitetsu (Eguchi Natsumi)
55. Coffee & Vanilla (Akegami Takara)
56. Berserk (Miura Kenta)
57. Tōmeina yuri kago sanfujinka iin kankoshi minarai nikki (Okita Bakka)
58. Devil's Line (Hanada Ryou)
59. Karakuri Circus (Fujita Kazuhiro)
60. Namaikizakari. (Miyuki Mitsubachi)
61. Investor Z (Mita Norifusa)
62. Houshin Engi (Fujisaki Ryu)
63. Love Phantom (Mitsuki Kako)
64. Kimetsu no Yaiba (Gotouge Koyoharu)
65. Terra Formars (Story: Sasuga Yu | Art: Tachibana Kenichi)
66. Grand Blue ( Story: Inoue Kenji Yoshioka Kimitake)
67. Haru Matsu Bokura (Anashin)
68. Torikae Baya (Saitou Chiho)
69. Btooom! (Inoue Junya)
70. Diamond no Ace - Act II (Terajima Yuuji)
71. Kitto Aishite Shimau n da. (Kazui KAzumi)
72. Natsume Yuujinchou (Midorikawa Yui)
73. Mahouka Koukou no Rettousei (Story: Satou Tsutomu | Illustration: Ishida Kana) [Light Novel]
74. Nanimo Kikazu ni Idakasete Kure - Tsuyogari Shojo to Wake Ari Ookami (Sawamura Mariko)
75. Omoi, Omoware, Furi, Furare (Sakisaka Io)
76. Dungeon Meshi (Kui Ryoko)
77. Hataraku Saibou (Shimizu Akane)
78. Kaguya-sama wa Kokurasetai - Tensai-tachi no Renai Zunousen (Akasaka Aka)
79. Ajin (Story: Miura Tsuina, Sakurai Gamon | Art: Sakurai Gamon)
80. Akagami no Shirayukihime (Akizuki Sorata)
81. Hanebado! (Hamada Kousuke)
82. Seirou Opera (Sakurakouji Kanoko)
83. Isekai Maou to Shoukan Shoujo Dorei Majutsu (Story: Murasaki Yukiya | Illustration: Tsurusaki Takahiro) [Light Novel]
84. Banana Fish (Yoshida Akimi)
85. Youjo Senki (Story: Carlo Zen | Art: Toujou Chika)
86, Colette wa Shinu Koto ni Shita (Yukimura Alto)
87. Kuro Hakushaku wa Hoshi o Mederu (Oto Hisamu)
88. Kono Oto Tomare! (Amyuu)
89. Dragon Ball Super (Story: Toriyama Akira | Art: Toyotarou)
90. Skip Beat! (Nakamura Yoshiki)
91. Tokyo Ghoul Remastered Edition (Ishida Sui)
92. Kasane (Matsuura Daruma)
93. Magi (Ohtaka Shinobu)
94. Sangatsu no Lion (Umino Chika)
95. Anata ga shite kurenakute mo (Haruna Haru)
96. Death March kara Hajimaru Isekai Kyusoukyoku (Story: Ainana Hiro | Illustration: Shri ) [Light Novel]
97. Hunter x Hunter Digital Colored Edition (Yoshihiro Togashi)
98. Diamond no Ace (Terajima Yuuji)
99. Saint Onii-san (Nakamura Hikaru)
100. Shinya no Dame Koizukan (Ozaki Ira)