To check the linguistic features of the interviews from the humidifier disinfectant victims, the research compared the interviews with the modern spoken corpus and analyzed them in respect of vocabulary and grammar. The results are as follows. First, a common point was deduced by the lexical metaphor that the relationship between the informants and their companion animals, the victims of the case, is as close as a family member. The result is very meaningful, in that it is very rare that the materials of the lexical metaphor provide and predict the relationship between humans and companion animals. Second, the actuality of the semi-formal talk was well revealed by the grammatical feature, in terms of many fragmentary sentences and frequent uses of the ‘-haeyo’ style. However, certain types of conclusive endings such as ‘-keodeunyo’, ‘-jyo’, or ‘-jahnayo’, which are used by the speaker's assumption on the state of hearer's knowledge, were frequently used compared to the modern spoken corpus. The features of these conclusive endings assuming hearer's knowledge and ignorance show that the linguistic materials of informants implicate their intent to inform the society of the case and to get recognition from the society.