Kobayashi Yumiko events
Some of the events that Yumiko has appeared in are as follows.
| 1998.05.10 | Kirara event in Yomiuri Land |
| 1998.07.26 | Kirara Completion event in Suginami Koukaidou |
| 1998.08.01 | Kirara Completion event in Osaka |
| 1998.08.02 | Kirara Completion event in Nagoya |
| 1998.08.08 | Kirara event in Kawagoe |
| 1998.08.09 | Kirara event in Hachiouji |
| 1998.08.15 | Kirara event in Sendai |
| 1998.08.16 | Kirara event in Sapporo |
| 1998.08.22 | Kirara event in Shizuoka |
| 1998.08.23 | Kirara event in Yokohama |
| 1998.09.15 | Kirara event in Yamagiwa Soft |
| 1999.07.20 | Anime Scramble event |
| 2000.07.22 | Tokyo Character Show |
| 2000.07.23 | Kirara event in Kanda Panse Hall |
| 2000.11.12 | Kira Melo Bunkasai 2000 Speciore in Amazing Square |
| 2000.12.22 | 2000 Xmas Party Nyokki no Heya he Youkoso |
| 2000.12.23 | Jump Festa 2001 |
| 2000.12.24 | Jump Festa 2001 |
| 2001.01.13 | Osaka Character Festival |
| 2001.01.14 | Osaka Character Festival |
| 2001.02.11 | Valentine Party in Kousei Nenkin Kaikan |
| 2001.02.18 | [13:00] Puni Puni Poemi event in Animate Machida |
| 2001.02.18 | [15:00] Puni Puni Poemi event in Ishimaru Denki Yokohama |
| 2001.02.18 | [16:00] Puni Puni Poemi event in Animate Yokohama |
| 2001.03.17 | Sengoku Shougi event in Sofmap Gigastore Ohmiya |
| 2001.07.15 | Akumajan Devil Mahjong event in Akihabara Satou Musen PC Island |
| 2001.07.21 | Tokyo Character Show [Sister Princess Stage] |
| 2001.07.29 | Akumajan Devil Mahjong event in Daiei Shoppers Plaza |
| 2001.08.12 | Anime Japan Fes 2001 The Auction |
| 2001.09.04 | Seiyuu Collection Returns One Year Anniversary |
| 2001.09.15 | The 6th Animation Kobe Song and Talk Anime Paradise |
| 2001.10.12 | Tokyo Game Show |
| 2001.10.13 | Tokyo Game Show -Sister Princess public recording- |
| 2001.10.13 | Tokyo Game Show -Success booth- |
| 2001.10.14 | Tokyo Game Show -Success booth- |
| 2001.10.28 | Chotto Ugoku Nyokki event in Ishimaru Soft One |
| 2001.12.02 | [13:00] Suzume no Gakkou event in Animate Shibuya |
| 2001.12.02 | [16:00] Suzume no Gakkou event in Shinseido Ikebukuro |
| 2001.12.08 | [15:00] Suzume no Gakkou Joukan event in Yamagiwa Soft |
| 2001.12.08 | [18:00] Suzume no Gakkou Joukan event in Ishimaru Soft One |
| 2002.02.24 | Muryou and Nadesico event in Ishimaru Soft One |
| 2002.03.31 | [15:00] Starchild Festival 2002 Spring |
| 2002.04.11 | [18:30] EX Driver the Movie event in Kudan Kaikan |
| 2002.04.20 | EX Driver the Movie talk at Cine Riible Ikebukuro 2 |
| 2002.04.27 | EX Driver the Movie talk at Cine Riible Umeda |
| 2002.07.07 | Sister Princess vol 9 event at Gamers Tachikawa |
| 2002.09.08 | Bistro Cupid premium party |
| 2002.09.21 | [12:00] Tokyo Game Show 2002 Main Stage Bunka Housou Special |
| 2002.09.22 | [13:00] Tokyo Game Show 2002 Main Stage Sister Princess |
| 2002.09.22 | [15:00] Tokyo Game Show 2002 PCCW Japan booth |
| 2003.06.21 | [18:30] Mieno Hitomi Debut 10 Shuunen Kinen Talk Live |
| 2008.03.29 | [16:45] Tokyo Anime Fair 2008 Main Stage Soul Eater stage |
| 2008.03.30 | [12:00] Tokyo Anime Fair 2008 Media Factory booth |
| 2011.01.22 | [17:00] Tennis no Ouji-sama Teni Prix Festa 2011 in Budoukan |
| 2011.05.22 | [13:00/18:30] Rio Super Carnival 2 Zepp Tokyo |