NEXCO Central is Japanese expressway company and they work with DWANGO Co., Ltd. for servicing fiction novel on internet using the motif of parking lots called Genso Koryu 幻想交流. The story is written by Yuuri Shibamura 芝村裕吏 the game designer of Toukenrambu 刀剣乱舞.
Here are the characters created by such fantastic illustrators and they represent as either Parking lots.
Okazaki 岡崎 parking lot
Illustrator Kishida Mel 岸田メル (anime “Hanasakuiroha 花咲くいろは” original character, “Alchemist 3 to Atelier Arland of Merle メルルのアトリエ～アーランドの錬金術士3～” PS3 game character design, etc.)
Nagashinoshitaragahara 長篠設楽原 parking lot
illustrator Yuka Nakajima ナカジマユカ (novel “Amagi Brilliant Park 甘城ブリリアントパーク” illustrations, “Listen to Me, Girls. I Am Your Father! パパのいうことを聞きなさい!” Novel illustrations, etc.)
Hamamatsu 浜松 parking lot
Illustrator Itounoizi いとうのいぢ (novel “Haruhi Suzumiya 涼宮ハルヒ” series illustrations, the novel “Shana 灼眼のシャナ” series, illustrations, etc.)
Suruga wan Numazu 駿河湾沼津 parking lot
Harunatsufuyuyu 春夏冬ゆう (PC game “Love, Election and Chocolate 恋と選挙とチョコレート” character design and original, “I want to say Even sister to brother now! いますぐお兄ちゃんに妹だっていいたい！” PC game character design and original picture, etc.)
There are more to come and you should check here! (the novel is available only in Japanese.