1. The plaintiff's primary and conjunctive claim against the defendant B corporation and his claim against the defendant C corporation.

1. Basic facts

A. Defendant B Co., Ltd. (hereinafter “Defendant B”) is an executor of the business of constructing and selling the F building on the land D and E (hereinafter “instant building”) on the land of the Hanam-si. Defendant C Co., Ltd. (hereinafter “Defendant C”) is a truster who entered into a management-type land trust agreement with Defendant B with regard to the said business.

B. On October 15, 2017, the Plaintiff and the Defendants entered into a sales contract with respect to the sales price of KRW 2,141,850,00 (hereinafter “instant contract”) with respect to the total selling price of KRW 2,141,850,00 with respect to the instant building of KRW 180.1692 square meters (i.e., the exclusive use area of KRW 93.5294 square meters and other common use area of KRW 86.6398 square meters; hereinafter “instant store”). The terms and conditions of the instant contract are as follows.

Article 1 [The sale price and payment method] (2) The payment schedule and payment amount (10%) the remainder (50%) of the payment schedule of intermediate payments (40%) (50%) (50%) (50%) (the third 4th 2nd 3rd 2, 2018. October 10, 2018. 214,185,00 214,185,185,185,185,000 214,185,185,002,185,00214,185,185,000) the first 14,185,000, 1801,000 1,070,925, 925,000 / [the 3rd 1st 2nd 4th 2nd 4th 2, 208) the location of the elevator installed in various printed materials, and the outline of the installation and its independent floor plan, etc.